SluggerWx

Cell in far SW MS looks pretty intense. Wilkinson County, MS. Jackson livestream here: https://www.wlbt.com/2021/03/17/tornado-watch-issued-across-central-east-miss/

So much has already happened today when I didn't think we'd be discussing debris signatures until dark/after dark. It's scary to think about all this being a precursor to a stronger event within the next few hours...

33 minutes ago, cheese007 said:

D1 enhanced added up in northwest OK extending into parts of KS and TX

There's quite a large UH swath that shows up on the HRRR after dark tonight (OK/TX border near Woodward) and tracks almost due E the whole night.

The Madill tornado continues to just mesmerize me - looking at damage today is pretty crazy. It looks like it just exploded in intensity within about 5-10 seconds.

Cloud tops near AL/MS border have been halted at around 32,000 feet the last couple hours. Within the last 15 minutes, cloud tops finally breaking through up to 39,000 ft.

Edit: And now SVR warned.

Hard to tell, but latest GOES-16 may be showing some overshooting tops near the border of MS/AL near Philadelphia, MS.

Edit: And...they hit a wall.

SVR Warned Cell north of Altus has the 'Flying Eagle' look that always seems to show up with isolated TOR cells. Will be interested in seeing how it evolves.

Just now, Chinook said:

what is even happening inside this very wide circulation?

We've got sisters.

Sorry, watched Twister with the kids today.

But, that's what it looks like to me.

New cluster of surfaced based supercells have exploded on the SW border of MS in the last 30 minutes. 

Hattiesburg could be under the gun in a couple hours. That cell on the MS/LA border looks potent.

If you look at GOES-16, three storm cells on the SW border of MS and LA show pretty explosive over the last 30 minutes.

7 hours ago, jojo762 said:

If you like LOTS of chaseable plains days, the long-range 12z GFS was your type of run... Not much else can be said besides that it shows a large, lumbering trough with day after day of southwest flow in the extended fairy-tale range atop a very moist PBL.

That's pretty crazy... starting on 4/27 there are like 5-6 days in a row. Of course it's la la land range, like you said, but maybe it indicates at least a potential upward trend in plains activity towards the end of April.

It was really interesting to watch the QLCS in South Carolina this morning. Have friends in Greenville so was pinging them in advance of TOR warnings letting them know.

 

At or immediately after Seneca, storm motions were 75mph! I've rarely ever seen an EF-3 tornado moving that fast. Greenville On-Air Mets were having a tough time keeping up.

 

Corellation Coefficient probably saved a lot of lives last night... I just can't remember ever seeing so many clear debris signatures on radar besides 4/27/11. Normally you get some light greens/yellows and maybe a little blue for a scan.

 

We saw so many wide blue dots... It just didn't stop.

 

Here in Woodstock, GA, the QLCS actually didn't churn out a Tornado. Most of North Metro ATL was really spared, and that's one uplifting thing we can take from this very interesting, but tragic event.

 

One side note, I do think they issued the larger TOR watch for Georgia too late.

 

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I really wish metro ATL and more of the northern ATL suburbs would have been placed under a Tornado Watch prior to the 11PM news cycle. 

Folks are going to go to bed tonight not even knowing about the Tornado Watch that's likely inbound. Hopefully they've been paying attention, but I wish they would have pulled the trigger by now.

Cell tops in SW MS are now > 40,000 feet. 

Didn't expect to see a complete break in the clouds in extreme SW MS in just a couple frames on GOES-16, but there it is. Looks like overshooting tops on visible surround this little clear blob. Wonder if the CAP eroded.

Huge Day 3 MOD posted by SPC

 

https://www.spc.noaa.gov/products/outlook/day3otlk.html

 

https://www.spc.noaa.gov/products/outlook/day3otlk_0730.gif

 

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I just watched a massively violent tornado rip across the highway in Jonesboro on the Arkansas DOT traffic cams.

PDS Tornado Warning on the Abilene cell, velocity couplet is maxed out across a couple different radar tilts. This is bad news.

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TOR now issued near Muskogee, OK. Tighter rotation on radar, too.

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PDS Tornado warning for a confirmed TOR near Goodland, KS right now.

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PDS TOR on the NM/TX border right now.

 

Janet, do you see the garbage dumpster that landed and crashed through the roof (in the hotel pics you posted)? That's interesting. Those commercial dumpsters aren't light, and this one crashed through the roof. It appears that you can see an impact crater on the left side above the dumpster. I'm guessing once the structural integrity was damaged, it looks like the surrounding area blew apart.

I always wonder how much large heavy debris objects like dumpsters and cars compound damage - in an intense tornado, they can basically serve forward artillery.

Joplin looked like it had tons of cars everywhere in driveways in the street view images before the tornado there, and I imagine rolling/tumbling and flying cars significantly escalated the damage potential of the debris field.

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Quite a unique TOR warned couplet just to the west of Hobart, OK at the moment. Looks like two unique and strong circulations.

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The cell on the WI/IL border could probably use a TOR warning. Hard to tell with distance to radar. Also, a couple cells south of LaCrosse look interesting.

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Brett Adair is on relatively flat ground and the whole meso is on the ground it looks like. Crazy large circulation.